6
6.
Suspended solids loading capacity ................................................................................................................................. 24
Anthracite depth filtration .................................................................................................................................................. 24
Turning off and starting up a media bed filter .................................................................................................................... 24
Decommissioning and commissioning a filter .................................................................................................................... 24
7.
Run phase filtering water, performance of AFM® & sand ............................................................................................. 25
Filtration performance and grade of filter media ............................................................................................................... 28
AFM® grade 0 Performance. ............................................................................................................................................... 31
8.
How to back-wash a filter .............................................................................................................................................. 32
Air purge ............................................................................................................................................................................. 32
At the start of a water back-wash, slowly wind-up to 100% water flow ............................................................................ 32
Back-wash water flow to achieve 10% to 20% bed expansion ........................................................................................... 33
Bed Expansion freshwater .................................................................................................................................................. 34
Back-wash duration to insure completion of the back-wash process ................................................................................ 36
Rinse phase to prevent solids entering the product water, and back to Run phase .......................................................... 36
Instantaneous filtration performance after a back-wash ................................................................................................... 37
9.
Pressure filter System Schematics ................................................................................................................................. 39
5 Valve – Single Filter layout and multi filter configuration ............................................................................................... 39
10. Storage ....................................................................................................................................................................... 40
11. Disposal of waste and spillage ................................................................................................................................... 40
12. Annex Index ............................................................................................................................................................... 41
Annex 1. Applications for AFM® ........................................................................................................................................ 42
Annex 2 AFM® for the tertiary treatment of Waste water ................................................................................................. 43
Municipal wastewater ........................................................................................................................................................ 44
Annex 3. The removal of Arsenic, Ferric and Manganese .................................................................................................. 46
Annex 4 Removal of Phosphate from water ....................................................................................................................... 47
Water & Wastewater treatment to remove phosphate ..................................................................................................... 47
Annex 5, Parasitic nematode egg removal from waste water, and second use of water for irrigation ............................. 49
Annex 6 Analysis of product water prior to connection of drinking water filtration system to a network ........................ 50
Annex 6. Water quality standards…Standards European and WHO drinking water quality ............................................. 52